ARE YOU FACING A DIFFICULT CLINICAL SITUATION. POST THE QUERY ON THE FORUMS

  • Sharebar

Chemical surface analyses of a 4-META-containg methacrylate resin-based sealer.

No replies
Prashant Deshmukh's picture
Offline
Joined: 25 Mar 2016

Although several adhesive resin-based sealers have recently been introduced, chemical surface analyses of adhesive interface have not yet been studied. In this study, Energy-dispersive x-ray spectroscopy (EDS) microanalysis, Fourier transform infrared (FT-IR) analysis and Scanning electron microscopy (SEM) observation were executed to investigate chemical characteristics of roots filled with a 4-META-containing resin-based MetaSEALTM (Hybrid Root SEAL; equivalent product to MetaSEALTM, marketed in Europe by Sun Medical, Japan).

Energy-dispersive x-ray spectroscopy (EDS) microanalysis, Fourier transform infrared (FT-IR) analysis and Scanning electron microscopy (SEM) observation were executed to investigate chemical characteristics of roots filled with Hybrid Root SEAL (HRS)

Results:
SEM revealed that resin tags and hybrid-like layer were formed in HRS/dentin interface, and resin-impregnated layer without interfacial gap-formation was observed in the HRS/GP interface.

SEM of resin-dentin interface

EDS element analysis demonstrated different calcium, silicon, carbon and zinc contents in radicular dentin, hybrid-like layer, HRS, resin-impregnated layer and GP, respectively. EDS line-scan showed the amount of zinc rapidly decreased from GP towards to the resin-impregnated layer, but the amount of carbon gradually increased in resin-impregnated layer.

Interface between MetaSEAL TM and radicular dentinFig. 2 Line-scan in the vicinity of resin-dentin interface.Fig. 4 SEM micrograph of a cross-sectional view.Fig. 3 Superimposition of EDS element mapping.Interface between MetaSEAL TM and GPFig. 5 SEM micrograph of a cross-sectional view.Fig. 6 Line-scan in the vicinity of resin-GP interface.

FT-IR analysis showed that the absorption peaks of hybrid-like layer were similar to these of radicular dentin and HRS.

Conclusion:
These results indicated that Hybrid Root SEAL could bond to radicular dentin and GP via the formation of hybrid layers.

Regards,

Prashant Deshmukh

Sunmedical (Mumbai)

7738442655 / 9870349989

up
1 user has Like.User Likes

Regards,

Prashant Deshmukh

Sunmedical (Mumbai)

7738442655 / 9870349989